Abaqus UMAT Subroutine for Calculation of Localised Yarn Properties
From TexGen
Jump to navigationJump to search
The file chamis_model_final.for provides an Abaqus UMAT subroutine which computes yarn properties for every element based on the local fibre volume fraction data provided in the .eld export file. The file can be downloaded <here>.
Instead of providing homogenised properties of yarns to Abaqus , raw fibre and matrix properties are specified and then the Chamis micromechanical model [1] is used to compute yarn properties for every element. Every element will then have unique properties which depend on the fibre volume fraction.
To use this function the ‘MATERIALS’ section in the .inp file should be modified as described below, substituting the fields in italics as appropriate:
